Ex 13.2, 6 - Curved surface area of a right circular - Area Of Cylinder

  1. Chapter 13 Class 9 Surface Areas and Volumes
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Ex 13.2, 6 Curved surface area of a right circular cylinder is 4.4 m2. If the radius of the base of the cylinder is 0.7 m, find its height. [๐ด๐‘ ๐‘ ๐‘ข๐‘š๐‘’ ๐œ‹= 22/7] Let the height of the circular cylinder beย h. Radius (r) of the base of cylinder = 0.7 m Curved Surface Area of cylinder = 2ฯ€rhย  4.4 m2 = 2ฯ€rhย  4.4 m2 = (2ร—22/7ร—0.7ร—โ„Ž) m 44/10 m = (2ร—22/7ร—7/10ร—โ„Ž) 44 m = (2ร—22ร—โ„Ž) h = 44/(2 ร— 22) hย = 1 m Therefore, the height of the cylinder is 1 m.

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